LOINC Code 98241-3: CD154 function (binding to CD40) Ql (T cells)

What is this code?

LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component CD154 function (binding to CD40). It is commonly used with the system or sample type T cells.

When is it used?

• Used in lab systems, EHRs, and clinical data exchange.
• May identify a test, observation, survey item, or clinical document request rather than a diagnosis.
• Status: ACTIVE
• Order vs observation: Observation

What it does not mean

• The code identifies the observation or test, not the actual result.

Key facts

• CD154 function (binding to CD40) [Presence] in T cells
• CD154 function (binding to CD40)
• Bind; Bp50; CD40 ligand; CD40L; CD40mulg; CD40ulg; CELL MARKERS; FCN; Func; Funct; gp39; gp39 Antigen, T Cell; gp39 Antigen, T-Cell; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen; T prime; T-BAM; T-Cell gp39 Antigen; TRAP; Tumor necrosis factor Related Activation Protein; X-linked hyper IgM

Where you may see this code

You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges.

Common synonyms

Frequently asked questions